Jacquard mechanism for lace bobbin-machines.



-No. 853,396. n 4 PATBNTED MAY 14. 1907.

` H. BUSGHER.

JAGQUARD MEGHANISM FOR LAGE BOBBIN MACHINES.

APPLIUATION FILED JUL-Ys. r1906.

z sums-SHEET 1.

'a A' Q, 7 j 1719.1 .2L-IJ Y l/tnesses; l Ilmmlorz;

110.853,396. PATENTED MAY 14, 1907.

H. BUSUHER. JAUQUARD Mmmmsm PoR 'LAGE BOBBIN MAGHINBS.

APFLIOATIOF FILED IULYQ. 1906.

Fig.;

l/ihesses: 111mb far; fm, A wffwh nl: :vonnis Pzrlns ca.. asuma-mw. n. c.

quently the devices 4UNITED STATES lPATEN T OFFICE. HERMANN BUsoHER, oE LANGEREELD, NEAR RARMEN, GERMANY. JACQUARD MECHANISNI FOR LACE BOBBlN-MACHlNES- Specification of Letters Patent.

Patented 'May 14, 1907,

Application filed July 9, 1906. Serial No. 325,344..

To all 'Lu/com, it may con/cern:

Be it known that I, HERMANN BUsoHER, a citizenof the German Empire, residing at Langerfeld, near Barmen, in the Province of Westphalia and Kingdom of Prussia, Germany, have invented certain new and useful Improvements in and Relating to Jacquard Mechanism for Lace Bobbin-Machines; and l I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enable others skilled in the art to which it appertains to make and ruse the same.

The subject-matter of the present invention is a new jacquard-mechanismfor lace braiding-machines in which the bobbins can be temporarily stop ed and in which conseibr effecting this must be moved at different times and must also be kept for a certain time in a determined posi.- tion so that the jacquard-mechanism must work with temporary stoppages.

The jacquard-mechanism or its equivalent, otherwise ordinarily used for bobbin-machines are not applicable to these machines because in their case the lifting bar is moved continuously up and down, and it was moreover necessary always to arrange two such mechanisms on account of the necessary nonsimultaneous actuation of the two stopping devices situated opposite one another. This however `would in articular necessitate a very complicated fldrmation and arrangement of the cords transmitting the action of the mechanism to the several stopping devices. anisms are used for the lace braiding-machines under consideration, in the case of which two systems of lifting-wires or lifters each arranged in a row and each under the influence of a special lifting-blade are provided, said two lifting-blades being moved non-simultaneously, that is the one after the other, and working with temporary stoppages in the raised position. In the case of this jacquard-mechanism card-chains have hitherto been employed for regulating the motion of the lifters, said card-chains consistingof a suitably large number of wooden sli s jointed together and shaped cylindricrollers are inserted at the proper places when the litters are to be kept out of reach of the lifting blades, said ro ers being held upon wires. These chains are moved periodically Consequently special jacquard-mechl aly inside and outside, into which small I in such a way that for every movement of the lifting blades a new row of rollers is placed opposite the pushers which are arranged close together all in a row and which adjust the lifters. These card-chains of wood as compared with the otherwise customary chains of separate cardboard strips possess however very considerable disadvantages. Their cost of production is very great and moreover it is very troublesome to arrange the chains according to the particular design or pattern to be produced because each time it is necessary to insert the rollers properly as it is not feasible on account of expense to use the chains for only one design. The most serious defect of these card-chains of wood is however that they are influenced by the weather existing at the time and changes in the weather produce alterations in the card-chain so that its uniformity and certainty of action are destroyed and consequently the various parts of the mechanism move irregularly and their irregular motion is transmitted to the bobbins. In the case of the new jacquard-mechanism these defects have been completely avoided, a cardchain being employed which is formed of separate cardboard strips of the ordinary kind. lIn the case of this mechanism the two lifting-blades are by means of suitably shaped lcaml disks for example moved up and down independently ofone another and the'v one after the other with the requisite stop in the end positions andthe setting or adjustment of the two systems of lifters is effected each time by latter being of which the one cooperates with the needles of the one lifter-system and the other with the needles of the second system, the cardprism or cylinder being so moved by means of suitable cam disks or other equivalent means that it remains in its drawn-up position until even the lifting-blade rising last has commenced its upwardmotion.

new jacquard-mechanism according to the present invention is illustrated by way of example in the accompanying drawing, on Which:

Figure 1 illustrates said jacquard-mechanism in sectional elevation, and Fig. 2 in plan, while Fig. 3 is an elevation of the mechanism las seen from the right of Fig. l. Figs. 4 t 5 illustrate in elevation the cam-disks and adjacent mechanism for actuating the means of the same card, the provided with two rows of holes,

IOO

IIC

various parts of the mechanism and Fig. 6 represents one of the cards of the patternchain.

Referring to the drawing 1 are the liftingwires or lifters of the one system and 2 those of the other system, said systems being arranged close to one another in two rows displaced or staggered with regard to one another in 'a manner which in other respects is the customary one. In their lowermost positions said systems rest upon the lifter-bottom 3. In correspondence with the two lifter-systems, two needle-systems 4, 5 are likewise provided, which are arranged the one above the other in two position, the needles 4 of the lifters 1 all being situated in the upper position and the needles 5 of the lifters 2 on the other hand being in the lower position; A separate lifting-blade 6 or 7 is provided for each lifter-system, said liftingblades being secured to the one yend of levers 8 or 9 respectively, which are revolubly mounted on a bar 10 provided in the upper part of the frame. The cam-disks 11 and 12 serve to operate the lifting-blades, said camdiskslbeing mounted on the shaft 13 which is driven` in any suitable manner. The lower ends of the connecting-rods 14, 15 which straddle the shaft 13 engage in the grooves of the cam-disks 11, 12 respectively and their other ends engage with the backward eXtensions of the above-mentioned lever 8, 9 respectively. In order to enable the motion of the lifting-blades to be regulated, the connecting bolts between the connecting-rods 14, 15 and the levers 8, 9 respectively are arranged adjustably in the levers.

The card-cylinder 16 which possesses on each side two rows of holes the one above the other in correspondence with the two needle-systems 4, 5 is revolubly supported at its ends in bearings in slide-rods 17 which are mounted displaceably in a horizontal direction on the frame 18, so that by suitably moving these slide-rods the cylinder 16 can be pushed forward against the needle-board in order to set or adjust the lifters or can be pushed or backed off from the same. The slide-rods 17 are moved in this way by engaging in the grooves of cam-disks 19 which are driven from the shaft 13 by means of the toothed wheels 20, 21. The hook 22 in conjunction with the ratchet-wheel 23 effects .the turning of the card-cylinder in the ordinary manner. Finally u on the'latter is carried the card-chain 24 ormed in the wellknown manner of stri s of card or pasteboard of suitable brea th. As can be seen from Fig. 6 each card possesses two rows of holes of which the upper holes co-operate 4with the needles of the lifters 1 While the lower ones co-operate with the needles of the lifters 2. Consequently when the cardcylinder is pressed against the needles both systems of litters are set simultaneously by one and the same card in correspondence with the particular pattern to be produced.

The above-mentioned cam-disks 11, 12, and 19 are so shaped and are displaced or staggered with regard to one another in such a way that the card-cylinder is drawn up against the needle-board before the raising of the lifter-blade commences, and that after this the lifting-blade 7 is raised and then finally the lifting-blade 6 and that not until after the lifting-,blade 6 has likewise commenced this movement the card-cylinder is moved away from the needle-board in order to set a new card in position for the following working cycle. The lifting blades which, as mentioned above, are actuated the one after the other remain moreover in their raised position as long as is called for by the arrangement of the bobbin-machine and its stopping-devices.

I-Iaving now explained the nature of my invention I declare that what I claim and desire to vsecure by Letters Patent is:

1. In acquard mechanism, two lifter systems, in combination with two lifter-blades, operating respectively thereon in succession, with an interval of inaction, a card-chain and cylinder arranged to set both systems, means for actuating said blades, means for actuating said card chain and cylinder and means for regulating said cylinder, each card being provided with two sets of holes co erating respectively with the needles of tllie said two systems, and the regulation of the cylinder keeping the card against the needle board till the lifting blade last to lift has begun this motion substantially as set forth.

2. In jacquard mechanism two lifter systems," in combination with two lifter blades, operating respectively thereon in succession, with an interval of inaction, a card chain and cylinder arranged to set both systems, a shaft carrying cam disks arranged for acting successively on said blades, rods interposed between said cam-disks and blades, camdisks and cooperating mechanism for drivin said cylinder and means for driving sai shaft and all of said disks, each card being provided with'v two sets of holes coperating respectively with the needles of the two lifter systems, one of the sets of needles beingarranged lower than the other and said cylin- IOO IIO

der bein re ulated to kee the attern card g g g1 P pressed upa ainst the nee e board until the ifting blade ast rising has begun to lift substantially as set forth.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

HERMANN BUSCHER.

Witnesses:

O'rTo KNIG, J. A. RrrTERsHAUs. 

